Sandeen Inc

A small company trying to get its new flying disk off the ground is suing the maker of Frisbee for $100 million, charging trademark infringement and unfair trade practices. The feud pits Sandeen Inc. of Hayward, Calif., and its SpinJammer disk against Wham-O Inc., which is marketing a similar new product called Ripspinner. Wham-O, based in San Gabriel, is part of Kransco Manufacturing Co. of San Francisco. Cone-Shaped Center A hearing is scheduled for Dec. 14 before U.S.